Wireless Scan Distance Prediction Using Classifier
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Solution Overview
Problem
Existing location determination methods for mobile computing devices rely on GPS or wireless base stations, which may not provide sufficient precision for relative position information and can be unavailable in certain situations.
Innovation Solution
A method and system that determine the distance between two wireless scans by comparing network attributes such as signal strength and unique identifications, using a reference set of attributes to calculate the distance without requiring absolute position information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS or wireless base station data are used to determine location, then absolute position information can be obtained, but the precision is insufficient for relative position information and the data may be unavailable in certain situations
Solution Approach 1:
The patent introduces wireless network attributes (signal strength, network identifiers) as intermediary measurements between the mobile device and the environment. Instead of directly using GPS coordinates or base station locations, the system compares attributes from wireless scans to infer relative position changes. This intermediary approach enables relative positioning without relying on absolute position data from GPS or base stations.
2Loss of information
If absolute position information is obtained from GPS or base stations, then location-based services can be provided, but the information may not be available or precise enough for relative position determination
Solution Approach 1:
The patent segments the position determination problem into relative position changes rather than absolute position calculation. Instead of determining the exact location, the system divides the problem into comparing sequential wireless scans to detect changes in the wireless environment. This segmentation allows the system to track relative movement without needing precise absolute position data.
3Reliability
If wireless network attributes are compared to determine distance, then relative position can be determined without absolute position information, but the system complexity increases due to attribute comparison and reference set management
Solution Approach 1:
The patent applies preliminary action by pre-storing reference wireless network attributes in a reference set before actual position determination is needed. During operation, the system only needs to compare current scan attributes against this pre-established reference, rather than performing complex calculations from scratch. This preliminary preparation reduces real-time computational complexity while maintaining reliability.
Data Source
AI summary
The present disclosure describes methods, systems, and apparatuses for determining the distance between two wireless scans of a mobile computing device. The distance is determined by scanning for wireless networks with a computing device. The scanning includes a receiving a plurality of network attributes for each wireless networks within the range of the mobile computing device. Further, the distance is determined by comparing the plurality of network attributes from the scanning with a reference set of network attributes. The comparing of network attributes is used to determine an attribute comparison. Finally, the distance between a position associated with the reference set of network attributes and the computing device, based on the attribute comparison, determines a position associated with the network.